A working definition for metadesigners
|Billiard table||Mother and child|
|Photo of an electronic circuit||Drawing of actual actual circuit|
The term 'feedback' emerged from within the emerging field of radio and electronics, which tended to have visible wires and clear information pathways that made feedback easy to identify and measure.
|Amplifier with feedback||Feedback diagram|
FEEDBACK TAKES TIME: It is important to remember that feedback takes time to take effect. In the feedback diagram (above right), for example, P sends information to R, which then replies with new information. This means that the state of P will alter, after it has sent its information. But not all feedback has the same effect - while some works to affirm the information sent out (i.e. called POSITIVE FEEDBACK), other feedback has the opposite effect (i.e. NEGATIVE FEEDBACK). N.B. Positive just means REINFORCING: There are no value judgements implied by the adjectives 'positive' or 'negative' when used with the word . They merely specify whether the feedback reinforces (i.e. in positive feedback) or moderates the original process (as in negative feedback).